Calculated column that is for each time series

 I have this Power BI file

 https://we.tl/t-Q5Fgc0G6ZX

It has data for users and scores per date

the greph looks fine except 1 thing

This is so far good to show total users counts and passed uses count

but what I want in top of that is to have a 3rd bar shows how many users are needed to get the target of passing users for that month/year/day/quarter

Target is 60% of total number of users

How can I do that.

appreciate your help